From f29f804a93e87c17670607641d120f431a3b0633 Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Fri, 11 Apr 2014 17:09:43 +0200 Subject: PPC: 85xx: Generalize DDR TLB mapping function The DDR mapping function really is just a generic virtual -> physical mapping function. Generalize it so it can support any virtual starting offset and IO maps just the same. Signed-off-by: Alexander Graf Acked-by: Scott Wood Reviewed-by: York Sun --- arch/powerpc/include/asm/mmu.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/powerpc/include/asm/mmu.h') diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index cadaeef85a..5aa916f2e2 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -509,6 +509,14 @@ extern void print_tlbcam(void); extern unsigned int setup_ddr_tlbs(unsigned int memsize_in_meg); extern void clear_ddr_tlbs(unsigned int memsize_in_meg); +enum tlb_map_type { + TLB_MAP_RAM, + TLB_MAP_IO, +}; + +extern uint64_t tlb_map_range(ulong v_addr, phys_addr_t p_addr, uint64_t size, + enum tlb_map_type map_type); + extern void write_tlb(u32 _mas0, u32 _mas1, u32 _mas2, u32 _mas3, u32 _mas7); #define SET_TLB_ENTRY(_tlb, _epn, _rpn, _perms, _wimge, _ts, _esel, _sz, _iprot) \ -- cgit